IceCube-170922A multimessenger association 2026-10-18
The 2018 collaboration paper associated the 22 September 2017 neutrino alert with the flaring blazar TXS 0506+056 through directional and multiwavelength observations. Its approximately evidence included trial corrections and assumed relationships between neutrino and gamma ray emission. A single association did not establish a production mechanism or explain the entire diffuse neutrino flux.[ref]
Multi-messenger observations of a flaring blazar coincident with high-energy neutrino IceCube-170922A by IceCube Collaboration and others. The neutrino alert; Neutrino-blazar coincidence analysis; Discussion, PDF pp. 2–3, 11–13, 62–66